What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Drifted landing roll. Hit drifted snow and plowed dirfts. Skidded sideways off rwy. Incorrect rwy condition report. (.4)during the night landing on a snow covered runway, the twin-turboprop airplane drifted left into deeper snow, struck a snow bank and came to a stop. The flightcrew had been informed that the runway was cleared to its full width of 150 feet, with 1/4 inch of snow over patches of ice. Post-accident observation of the runway revealed that there were snow banks 2 to 4 feet high on both sides, and snow extended from both sides inward for about 20 feet, at a depth of 4 to 6 inches. A snow bank also extended out from a taxiway approximately 20 feet onto the runway.
As the FAA filed it
DRIFTED LANDING ROLL. HIT DRIFTED SNOW AND PLOWED DIRFTS. SKIDDED SIDEWAYS OFF RWY. INCORRECT RWY CONDITION REPORT. (.4)DURING THE NIGHT LANDING ON A SNOW COVERED RUNWAY, THE TWIN-TURBOPROP AIRPLANE DRIFTED LEFT INTO DEEPER SNOW, STRUCK A SNOW BANK AND CAME TO A STOP. THE FLIGHTCREW HAD BEEN INFORMED THAT THE RUNWAY WAS CLEARED TO ITS FULL WIDTH OF 150 FEET, WITH 1/4 INCH OF SNOW OVER PATCHES OF ICE. POST-ACCIDENT OBSERVATION OF THE RUNWAY REVEALED THAT THERE WERE SNOW BANKS 2 TO 4 FEET HIGH ON BOTH SIDES, AND SNOW EXTENDED FROM BOTH SIDES INWARD FOR ABOUT 20 FEET, AT A DEPTH OF 4 TO 6 INCHES. A SNOW BANK ALSO EXTENDED OUT FROM A TAXIWAY APPROXIMATELY 20 FEET ONTO THE RUNWAY.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.